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AS1545 数据表(PDF) 7 Page - ams AG

部件名 AS1545
功能描述  Dual, 12-Bit, 1MSPS, SAR ADC
PDF  34 Pages
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制造商  AMSCO [ams AG]
网页  http://www.ams.com
标志 AMSCO - ams AG

AS1545 数据表(HTML) 7 Page - ams AG

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www.austriamicrosystems.com
Revision 1.00
7 - 34
AS1545
Data Sheet - E l e c t r i c a l C h a r a c t e r i s t i c s
Twos Complement Output Coding
Positive Gain Error
Fully Differential Mode
±2
LSB
Positive Gain Error Match
±0.5
Zero Code Error
±0.5
±5
LSB
Zero Code Error Match
±0.5
Negative Gain Error
±2
LSB
Negative Gain Error Match
±0.5
Analog Input
VINx
Single Ended Input Voltage
Ranges
Bit RANGE = 0
0
VREF
V
Bit RANGE = 1
0
2xVREF
VINx - VINy
Pseudo Differential Input
Voltage Ranges
Bit RANGE = 0
VCM
VCM+VREF
V
Bit RANGE = 1
VCM
VCM+
2xVREF
VINx &
VINy
Differential Input Voltage
Ranges
Bit RANGE = 0
VCM-
VREF/2
VCM+
VREF/2
V
Bit RANGE = 1
VCM-
VREF
VCM+
VREF
VCM
Common Mode Voltage
0
VDD
V
Leakage Current
±1
µA
Absolute Analog Input Voltage
0
VDD
V
Input Capacitance
Track Mode
15
pF
Hold Mode
8
pF
Reference Input/Output
REFIN
Input Voltage Range
1
VDD
V
REFOUT
Output Reference Voltage
2.475
2.5
2.525
V
ILEAK
Leakage Current
±1
µA
Input Capacitance
30
pF
REFA, REFB Output
Impedance
5
Ω
REFOUT
TEMPCO
Reference Temperature
Coefficient
30
ppm/ºC
Logic Inputs
VIH
Input High Voltage
VDD < 5V
0.7x
VDRIVE
V
VDD > 5V
2.8
VIL
Input Low Voltage
0.4
V
IIN
Input Current
VIN = 0 V or VDRIVE
-1
+1
µA
CIN
Input Capacitance
5
pF
Logic Outputs
VOH
Output High Voltage
ISOURCE = 200µA
VDRIVE
- 0.2
V
VOL
Output Low Voltage
ISINK = 200µA
0.4
V
Table 3. Electrical Characteristics (Continued)
Symbol
Parameter
Condition
Min
Typ
Max
Unit



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